Control of vehicles provided with electrical transmission



. THROTTLE Mmh 16,1926.-

CONTROL OF 1,577,397 H. K. WHITEHORN VEHICLES PROVIDED WITH ELECTRICAL TRANSMISSION 3 Sheets-Sheet 1 Filed March 24 1924 ENGINE =amwm March 16 1926.

H. K.' WHITEHO RN CONTROL OF VEHICLES PROVIDED WITH ELECTRICAL TRANSQIISSION Filed-March 24, 1924 3 Sheets-Sheet 2 I ENGINE THROTTLE March 16 1926. 1,577,397

H. K. WHlT EHORN CONTROL OF VEHICLES PROVIDED WITH ELECTRICAL TRANSIISSIO" Filed March 24. 1924 3 Sheets-Shel i.

i T prises:

mventeg ,Iiw f i fi f i a power to La .Vinotor, (or tsitheapq e i the (12b itilizatioii bfseiiaratelyeizelted @0115 jttsu iply the necessary field whleii -,the motor is o J iis'ed. "as; :atge eramr. Breferably sueh c01 ls l'to'the. nor al" series so ls or nWthejar'rangethent is silch dnri r l fiprgkm the ie'seoil'sare cut rb ih i a j hatjiif -."th Way i ise sif m t r 'allr fia i rin braking? 11s.- ayoideol, 's neegthe Jload1s: ob-

ejtaipeb e Ebygmeans bizh gh riv flts d le elirr'ent thant-if tlieiordiha-ry series .coi ls'were 1 l lf fix i ldl ing; mk I "P. fe f ed'gis mth ppar tus-9 m;- j'shulitor coiiipoutid wqun kdynam v Whilih s drivei l byjanjinten al eonibpstim; 1 l i ie a dlj ipp iesi aqser s} w undim q whieh di'iy sf the road Wheels thro ljlgh a Garden shaftiwormg gearf and differential.

a n me tiis 'we kss ei edl 110111 4 5;fsp ee" eally ill istrated; fIn adehtionftothe serie windifigzoi. the motor, braking e'oils With the iabpv 'and sother objeets' ip. view (the iiatili'elofwhieh-will be bettergunderm Subject, residing at Citaiin WL ius-ful hQICOntrQI "of ,v h

ni adip a P11, h ie sl a diagrams. I V a Referring particularly to Fig. 3, position -1 ofthe controller gives the usual connee-f trons forforward running;'battery,-E is be ItO'QdLi mQ hQ des ipti s ai riations arid arrangemehtsh r iitafiogmafnat 4,1 24. 701,578. i

'' illlistrate glia'granirriatieally the traii smissioii" system and a single controllerforj carrying out the vari0usponnecti'0ns required; I

L'Fig. I shows the preferredformii whieh i the braking coils are separately eXited, and Fig. 2 shows a 111 0difieatio'n in which the PATENTzQFEICE;

AR, pK iI1E r1rWHITEHQ oFHMA I Ds'r E, ENGLAND;Assmfioieltrofmrmiind- 'v n'smomons mrm'iipyos VICTOB IA 'WORKS, ,MAIDSTQNEyKENT, ENGLAND."

co ma 3o," yani tasgiebvmn WiT'H L flfflQ TB ML S O braking field is excited from the illiOljjQll rar eireli'its'iestablished in thej'respeetiYe eleven 'field coils m and braking coils B of comparatively small section andjprjeferabl the armature 'Dflmature,.during thetime wh n-theme i used as; a dynamo f0rjbrakingL1 Figs; '3Qto same number of turns. as,ior more turns than,

the .jserie's-coils. A fixed resistance R supplies at-permanent load forhraking and. the balance' ofi braking voltage is adjustable V by mealisotr'esistance R 4, A Winding tiis ar- ,rang'ed' when energized ftoelosean auxiliary thrott1e ljeyice to slow down or stop the 'jengine'hiefore and duringb rakirig'. a

f? In l gfi i a x r bat y .1 s 3 50 showny'fwhile in Figure2 the arrangement is modified in that the motor .isi's till selfexciting when used as adynainb forbraking.

eontacts' represented at b, 0, a v. a i

nectiqn's beingleasily from iiig charged and braking field. unexcited; in pos tion '2, Fig. 4, the battery is cut out "The eontrolleriin each "case has 'its" fixed and,

drum-segments at s, 8 1851. 1'. the coil-V andvthe Winding [excited toslowdown 0r stop the e1'1gine; i1 position 3, Fig. '5, the ma n dyr amo circult s broken motor armature M is]. put ic'ross reslstaneefifig motor 'of c 6iripa 1 iV y smallsection are provided are-plaeed in series iiran open eircuiti in .lposition 4, Fig. 6, the battery excites secured; fIn position 10' the current from c 'the' motofia'rmatnre' is used ato" :drivefithe dynahio toj rsttrt thfi engine; the ttnxiliary throttle 'being opened -.and the series field.

windingliof th dynamo reverse'd lse'. Fig.1 12 ,..position::11;gives the standard connectionsiforirevereing, the 7 direction of rotation F'of t11e;rnot6r-be1ng' r ve'rs-eo, see Fig. 13.- -1- v I Figure 2"is 'substantie llyeimilargwith the -10 =beiii excltgii omission .-:of battery, the braking field. by theimot r t tur nwit ld' jin' V series, reversd.'

' n gm rifi d oils t ie pit said.

orm the w nf' op r tor:

30 In a c1trfnsniission andthinking indis et forth, the combinw iche colnbined' to excite" the moltor toEservezisi gen'erator when being driven.

I F 4. 111 2; Vehicle transmissionjand" braid ng System of thefkinjd 'eet fortlnthej combina:

' ra n om dr v m or, fi i c il'sq we "said? motor; connepuons; enabling sold 'inotor ino for broking and fi rther fieldf'coiis adoptd f ,ggl'

oex'cite SaidlIInOtor' during bra l'ging onaicl further fild coils being separately 7 ed; and a; control device en'aloling s'gtid nnections to} be' estabHshed :at' the" will" of V "'syisteni of kind" forth, the'combina;

,tion of a motor adapted nornially to drive Jfunther numbenofi turnsiof .field.:wi ndm t 4 the normfighghting t'iio'n of fifdrivi'n d rw ih e t th the fQljIfiiunStr'at l; & single controller is'ystenil'ofthe kind Sct' forthfihe combination line. speed before? breaking the-mm ele tr 'ysten 'ioffthekind-set forth; the 'coinbifiaitionf c, yn mj in i bto ;m i h f n 5 ansm si n an br k fi hwe i ira d' at= e t i ft ne ii q be fi h thereby "a nfimber fof 'tii'rnsj. of field winding adaptedto excite the motor whendrivlng', "8;

adapted toabei. connected seriesflww-ithjisqgi H first mentioned" turns "and separate exciting Inca-n5 to -energize -the"coinbi ndwifidings to excite theflnotor to serve. as a generator when, being'drivenf I In a v h le-transmissi nf ra ing; Syst m he. k

' set fforthif t "e combina 'otor,ffie1d coils; to egg to said m o ii, c nne t n habl sa d om on tic bex riyen and to be mpl'ci ked? Inn for braking," and ifiirther -fie1doi adapted to excite s'g'i'tli metalzi'r battfe co ne i is adfpt df v 9. I fa jvehicle-transmissionjand o'fthe elements c1'fti'1ned1 in c IE iInS'Withffnr 7 then: connections;adapted:to slow the Tdyn cal'connec'tio'n, '10; In a Vehicle transmission and Toi-zikmg systeinfofithekindset forth, tli-ei conglhina'tio'n? of theflelements claimed; in claim 8 f with fur ther; "connections adapted "to ,sfip h dy be o fb ki i h Ifiaifi electrical connection and" to restart the dynimpy' "111.111 9; ehicle, transmission andfbraking jconnectionsf between" saitf dynalno an" motor, field 0011s forslaidfniotor excited '{fifical connection and excite said braking coils, and meansto utilize said variable resistflnce for gradually increasing the b1 ak-- ing efiect up to its maximum;

' In testimony whereofl aflix my signa ture. I

HAROLD KENNETH WHI'TEHORN, s 

